Latest IOS for my CISCO 2500 Router

Posted on 2006-04-17
Last Modified: 2008-03-03
I have the following IOS:
IOS (tm) 3000 Software (IGS-DR-L), Version 11.1(22), Release Software (fc1)

I beleive the newest IOS for this is 12.3?  Is this correct, or does this change depending on what feature set I have?

Thanks for the help!
Question by:dhathsato
    LVL 12

    Accepted Solution

    2500s probably can run up to 12.1, 12.2, or perhaps 12.3.  You'd likely need a RAM upgrade to run that code, and you might want to evaluate whether you really need to upgrade to that code though.
    LVL 20

    Assisted Solution

    Latest IOS for 2500 series is: 12.3(18).  Some memory requirements are as follows:
      IP feature set: 12 MB DRAM, 16 MB flash
      IP Plus feature set: 16 MB both DRAM/flash

    Just be aware that your Boot ROM version must be a minimum version to support 16 MB flash; I believe the minimum version is 10.2(8a) or higher.  Also remember that the 2500 series has long been retired, & isn't supported by Cisco anymore.


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